Two new monoterpenoid indole alkaloids from Alstonia rostrata

Autor: Xiao-Jiang Hao, Feng Guo, Yu Zhang, Hong-Ping He, Yu-Xi Yuan
Rok vydání: 2017
Předmět:
Zdroj: Natural Product Research. 32:844-848
ISSN: 1478-6427
1478-6419
DOI: 10.1080/14786419.2017.1360886
Popis: Two new indole alkaloids, winphyllines A (1) and B (4), along with four known alkaloids, Nb-demethylechitamine (2), 17-O-acetylnorechitamine (3), 12-methoxyechitamidine (5), and N(4)-demethylastogustine (6), were isolated from the methanol extract of the twigs of Alstonia rostrata. The structures of 1 and 4 were elucidated by means of HRMS and NMR spectroscopic methods. The in vitro cytotoxic activity of the isolated alkaloids against several human cancer cell lines was evaluated.
Databáze: OpenAIRE